greenfather

I'm interested in strengthening my stems to produce bigger buds by using bigger circulating fans. What's the rule of thumb concerning amount of wind/ size of fans and during which stages of growth are most impotant to have the high velocity wind circulating?
Thanks...Peace

Smoker4life420

You dont want to blow them over so just give them enough wind to sway them a little. Dont send a hurricane through their, just a nice breeze. thats always worked for me another rule is if you can light a joint in your grow room then add another fan
Smoker4life420

Potbelly

Solving your problem isn't in buying larger fans. Your problem is probably two-fold; your light is too far above the plants and your root structure is not developed to its full potential.

When the light is too far from the plants they stretch, this thins the stem. If the plant is unable to thicken the stem on its own, then its not getting enough to eat. This is solved through cloning (and the right hydroponic system).
When you clone, you need to plant at least 3 nodes, 5 is best. Then your plant can eat enough to develop the strength to hold itself up and produce big buds.

Smoker4life420

You want constant air circulation, its good to keep new air coming in and to keep exercising the plant. Always have a fan
SFL

Jenna Tailya

Pardon me if Im wrong. But without intake air you are not getting fresh supply of CO2. A fan in your growroom just moves around the air you have. Personally, I run my occilating fans with my 12/12 timer and shut them off during dark period, but still run int/ex. Not saying its right or wrong, I have never run the fans during dark. Is there a reason why you run the fan during dark periods? Thanx Jenna

OzGrowa

Hello people,
I saw this thread in passing and I thought Id offer some of my experience.

Thicker stems are firstly genetic, secondly the result of constant cellular disruption during the lights 'on' period and thirdly the result of carbohydrate buildup in the cellular walls. An Indica pure or Indica dominant strain will inherently have thicker stems than a Sativa, whose stems will be more stretched, not necessarily weaker but thinner.

I have my fans blowing quite hard during the growth and flowering phases, its especially important in flowering as youi want to discourage mould and secondly encourage strong stems to support the buds. Cellular disruption is very important, the more micro rips n tears in the tissue the more regrowth. Not a hurricane but a nice strong breeze.

Air intake is really important, as is outtake.

Regds

OzGrowa

Potbelly

Hello again, great topic

I think that fresh air is needed day and night. Probably more so at night when they're photosynthising(?sp). The important thing is not to spray water on a budding plant during the dark period, as they'll stay wet and mildew on the vine.

What i do is draw and vent my air directly to/from the outdoors by running the fans for fifteen minutes every two hours. Day and night. Then within minutes of their shuting off, my watering/co2 timer turns on for fifteen minutes. This way my girls are getting plenty fresh air and the higher levels of fresh co2 they prefer, which can't happen if you're running your fans 24/7.

Potbelly

Greenfather is looking to increase bud production. That isn't going to happen by adding a fan or two. Fans offer exercise, not steroids. They won't turn a pee-wee herman into an arnold schartzeneggar.

Using a fan at night might not be mandatory. But I believe the plants breath as much, if not more, at night doing their photosynthesis thing as they breath during the day collecting light. I just don't see a reason not to provide the same fresh air/co2 regimen at night as during the day. Plants gotta breath. Twelve hours makes a stuffy chamber of old stale, used up co2 depleted air. Day or night.

And when using the two-chamber method, shutting the fans off in one chamber only would be a huge pain.

SPAMMAN

HELLO,
Im not sure but i dont think plants breath at night,at least not as much.i would think plants only need co2 when they are in the process of photosynthesis,and since light is needed as well for this process,im assuming its not taking place therefor not using the"fuel".i think the(here goes but my spelling sucks)photopersperation,or photoresperation or something like that,but anyway im far from an expert,just trying to use something,i thiink ive learned.lol you get what i mean anyway,i hope!
SPAMMAN
*IF IM TOTTALY WRONG BLAME MY MOTHER!

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SPAMMAN

smokinrav

Best reason Ive heard for running fans at night is exhausting hot air to prevent moisture accumulation. But you really only need to do this for 30 mins or so. That said, Im with JT, run at least one fan 24 hours.

Smokin